Fcntl (Perl in a Nutshell, 2nd Edition)

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8.93. Fcntl

A translation of the C fcntl.h program that uses h2xs (which builds a Perl extension from a C header file) and the C compiler to translate #define symbols and make them available as functions. Exports the following routines by default; each routine returns the value of the #define that is the same as the routine name:

`FD_CLOEXEC`	`F_DUPFD`	`F_GETFD`	`F_GETFL`	`F_GETLK`
`F_RDLCK`	`F_SETFD`	`F_SETFL`	`F_SETLK`	`F_SETLKW`
`F_UNLCK`	`F_WRLCK`	`O_APPEND`	`O_CREAT`	`O_EXCL`
`O_NDELAY`	`O_NOCTTY`	`O_NONBLOCK`	`O_RDONLY`	`O_RDWR`
`O_TRUNC`	`O_WRONLY`

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